Solubilities of O2, N2, H2, and CH4 in 1,1,3,3-tetramethylguanidium lactate (TMGL) at the temperatures ranging from (308 to 327) K and the pressures ranging from (0 to 11) MPa were measured. The solublilities were correlated using the Krichevisky-Kasarnovsky equation, from which Henry s constants and partial molar volumes of these four gases were obtained. It was found that the solubilities increase with increasing pressure and decrease with increasing temperature. The solubilities of these four gases in TMGL follow the sequence xCH4 > xO2 > xN2 > xH2 (i.e., HCH4 < HO2 < HN2 < HH2). Comparing the solubility data of these four gases with that of CO2 in TMGL, it is observed that the solubilities of these four gases in TMGL are much lower than that of CO2. This means that TMGL may be used as a potential solvent for capturing CO2 from mixed gases.
Compounds
#
Formula
Name
1
C8H19N3O3
1,1,3,3-tetramethylguanidinium lactate
2
O2
oxygen
3
N2
nitrogen
4
CH4
methane
5
H2
hydrogen
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.